Influence Of Cr Alloying Content On The Surface Oxide Composition In Case Of Water-atomized Steel Powder
Paper in proceeding, 2016
Utilization of chromium as an alloying element for water atomized steel powder improves cost and performance efficiency for PM steels. However, presence of Cr puts strict demands on the component manufacturing process due to high oxygen sensitivity of chromium. Hence its effect on surface oxide distribution is of vital importance for the tailoring of the sintering process. A number of experimental steel powders, alloyed with 0 to 4 wt.% of chromium, were prepared by water atomization with subsequent annealing in lab-scale equipment. Powder manufacturing process conditions were kept the same for all the powders. The effect of chromium content in the powder on the surface oxide layer thickness and distribution of particulate oxides features on the powder surface was studied by XPS and HRSEM+EDX.
Author
Ruslan Shvab
Chalmers, Materials and Manufacturing Technology, Surface and Microstructure Engineering
Eduard Hryha
Chalmers, Materials and Manufacturing Technology, Surface and Microstructure Engineering
Dimitris Chasoglou
Ola Bergman
Lars Nyborg
Chalmers, Materials and Manufacturing Technology, Surface and Microstructure Engineering
World Powder Metallurgy 2016 Congress and Exhibition, World PM 2016; Hamburg; Germany; 9 October 2016 through 13 October 2016
978-1-899072-47-7 (ISBN)
Subject Categories
Materials Engineering
Metallurgy and Metallic Materials
Areas of Advance
Production
Materials Science
ISBN
978-1-899072-47-7